| chondrite | (noun) a rock of meteoric origin containing chondrules | - |
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| chondrodystrophy | (noun) an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism | Synonyms: achondroplasia, achondroplasty, osteosclerosis congenita |
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| chondroma | (noun) a common benign tumor of cartilage cells | - |
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| chondrosarcoma | (noun) a malignant neoplasm of cartilage cells | - |
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| chondrule | (noun) small granule (of e.g. chrysolite) found in some meteoric rocks | - |
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| chooser | (noun) a person who chooses or selects out | Synonyms: picker, selector |
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| chop | (noun) a tennis return made with a downward motion that puts backspin on the ball | Synonyms: chop shot |
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| (noun) a grounder that bounces high in the air | Synonyms: chopper |
| (noun) a jaw | - |
| (noun) a small cut of meat including part of a rib | - |
| (noun) the irregular motion of waves (usually caused by wind blowing in a direction opposite to the tide) | - |
| chophouse | (noun) a restaurant that specializes in steaks | Synonyms: steakhouse |
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| chopine | (noun) a woman's shoe with a very high thick sole | Synonyms: platform |
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| chopper | (noun) a grounder that bounces high in the air | Synonyms: chop |
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| (noun) a butcher's knife having a large square blade | Synonyms: cleaver, meat cleaver |
| (noun) an aircraft without wings that obtains its lift from the rotation of overhead blades | Synonyms: eggbeater, helicopter, whirlybird |
| (noun) informal terms for a human `tooth' | Synonyms: pearly |
| choppiness | (noun) used of the sea during inclement or stormy weather | Synonyms: rough water, roughness |
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| chopsteak | (noun) a patty of ground cooked beef | Synonyms: beef patty, chop steak, chopped steak, hamburger steak |
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| chopstick | (noun) one of a pair of slender sticks used as oriental tableware to eat food with | - |
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| choragus | (noun) (ancient Greece) leader of a group or festival; leader of a chorus | - |
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| choral | (noun) a stately Protestant (especially Lutheran) hymn tune | Synonyms: chorale |
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| chorale | (noun) a stately Protestant (especially Lutheran) hymn tune | Synonyms: choral |
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| chord | (noun) a combination of three or more notes that blend harmoniously when sounded together | - |
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| (noun) a straight line connecting two points on a curve | - |
| chordamesoderm | (noun) the area of mesoderm that forms the notochord | Synonyms: chordomesoderm |
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| chordate | (noun) any animal of the phylum Chordata having a notochord or spinal column | - |
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| chorditis | (noun) inflammation of the vocal cords | - |
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| (noun) inflammation of the spermatic cord or vocal cords or vocal folds | - |
| chordomesoderm | (noun) the area of mesoderm that forms the notochord | Synonyms: chordamesoderm |
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| chordophone | (noun) a stringed instrument of the group including harps, lutes, lyres, and zithers | - |
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| chore | (noun) a specific piece of work required to be done as a duty or for a specific fee | Synonyms: job, task |
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| chorea | (noun) any of several degenerative nervous disorders characterized by spasmodic movements of the body and limbs | - |
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| (noun) chorea in dogs | Synonyms: canine chorea |
| choreographer | (noun) someone who creates new dances | - |
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| choreography | (noun) a show involving artistic dancing | Synonyms: stage dancing |
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| (noun) the representation of dancing by symbols as music is represented by notes | - |
| (noun) a notation used by choreographers | - |
| chorine | (noun) a woman who dances in a chorus line | Synonyms: chorus girl, showgirl |
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| chorioallantois | (noun) the very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois | Synonyms: chorioallantoic membrane |
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| choriomeningitis | (noun) a cerebral meningitis with cellular infiltration of the meninges | - |
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| chorion | (noun) the outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals) | - |
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| chorioretinitis | (noun) inflammation of the choroid layer behind the retina | - |
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| chorister | (noun) a singer in a choir | - |
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| chorizo | (noun) a spicy Spanish pork sausage | - |
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| choroid | (noun) a highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye | Synonyms: choroid coat |
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| chortle | (noun) a soft partly suppressed laugh | Synonyms: chuckle |
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| chorus | (noun) the part of a song where a soloist is joined by a group of singers | Synonyms: refrain |
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| (noun) any utterance produced simultaneously by a group | - |
| (noun) a group of people assembled to sing together | - |
| (noun) a body of dancers or singers who perform together | Synonyms: chorus line |
| (noun) a company of actors who comment (by speaking or singing in unison) on the action in a classical Greek play | Synonyms: Greek chorus |
| chosen | (noun) an exclusive group of people | Synonyms: elect |
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| (noun) one who is the object of choice; who is given preference | - |
| chou | (noun) puff filled with cream or custard | Synonyms: cream puff |
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| (noun) any of various types of cabbage | Synonyms: cabbage |
| chough | (noun) a European corvine bird of small or medium size with red legs and glossy black plumage | - |
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| chow | (noun) breed of medium-sized dogs with a thick coat and fluffy curled tails and distinctive blue-black tongues; believed to have originated in northern China | Synonyms: chow chow |
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| (noun) informal terms for a meal | Synonyms: chuck, eats, grub |
| chowchow | (noun) a Chinese preserve of mixed fruits and ginger | - |
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| (noun) chopped pickles in mustard sauce | - |
| chowder | (noun) a thick soup or stew made with milk and bacon and onions and potatoes | - |
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| chrestomathy | (noun) a selection of passages from different authors that is compiled as an aid in learning a language | - |
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| chrism | (noun) a consecrated ointment consisting of a mixture of oil and balsam | Synonyms: chrisom, holy oil, sacramental oil |
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| chrisom | (noun) a consecrated ointment consisting of a mixture of oil and balsam | Synonyms: chrism, holy oil, sacramental oil |
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| christ | (noun) any expected deliverer | Synonyms: messiah |
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| christella | (noun) any of several tropical ferns of the genus Christella having thin brittle fronds | - |
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| christening | (noun) giving a Christian name at baptism | - |
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| chroma | (noun) chromatic purity: freedom from dilution with white and hence vivid in hue | Synonyms: intensity, saturation, vividness |
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| chromaesthesia | (noun) a form of synesthesia in which nonvisual stimulation results in the experience of color sensations | Synonyms: chromesthesia |
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| chromate | (noun) any salt or ester of chromic acid | - |
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| chromaticity | (noun) the quality of a color as determined by its dominant wavelength | Synonyms: hue |
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| chromatid | (noun) one of two identical strands into which a chromosome splits during mitosis | - |
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| chromatin | (noun) the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condenses into chromosomes | Synonyms: chromatin granule |
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| chromatism | (noun) abnormal pigmentation | - |
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| (noun) hallucinatory perception of colored lights | - |
| chromatogram | (noun) the recording (column or paper strip) on which the constituents of a mixture are adsorbed in chromatography | - |
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| chromatograph | (noun) equipment that enables a sophisticated separation, e.g. gas chromatographic or liquid chromatographic separation. | - |
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| chromatography | (noun) a process used for separating mixtures by virtue of differences in absorbency | - |
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| chrome | (noun) another word for chromium when it is used in dyes or pigments | - |
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| chromesthesia | (noun) a form of synesthesia in which nonvisual stimulation results in the experience of color sensations | Synonyms: chromaesthesia |
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| chromite | (noun) a brownish-black mineral; the major source of chromium | - |
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| chromium | (noun) a hard brittle multivalent metallic element; resistant to corrosion and tarnishing | Synonyms: atomic number 24, Cr |
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| chromoblastomycosis | (noun) a fungal infection characterized by itchy warty nodules on the skin | - |
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| chromogen | (noun) a compound that can be converted to a pigment | - |
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| chromolithograph | (noun) a print made by chromolithography. | - |
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| chromolithography | (noun) single- or multi-color lithography | - |
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| chromophore | (noun) the chemical group that gives color to a molecule | - |
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| chromoplast | (noun) plastid containing pigments other than chlorophyll usually yellow or orange carotenoids | - |
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| chromosome | (noun) a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order | - |
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| chromosphere | (noun) a gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun | - |
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| chronicle | (noun) a record or narrative description of past events | Synonyms: account, history, story |
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| chronicler | (noun) someone who writes chronicles | - |
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| chronograph | (noun) an accurate timer for recording time | - |
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| chronology | (noun) the determination of the actual temporal sequence of past events | - |
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| (noun) a record of events in the order of their occurrence | - |
| (noun) an arrangement of events in time | - |
| chronometer | (noun) an accurate clock (especially used in navigation) | - |
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| chronoscope | (noun) an instrument for accurate measurements of small intervals of time | - |
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| chrysalis | (noun) pupa of a moth or butterfly enclosed in a cocoon | - |
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| chrysanthemum | (noun) any of numerous perennial Old World herbs having showy brightly colored flower heads of the genera Chrysanthemum, Argyranthemum, Dendranthema, Tanacetum; widely cultivated | - |
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| (noun) the flower of a chrysanthemum plant | - |
| chrysarobin | (noun) a bitter yellow powder used to treat skin diseases | Synonyms: araroba, Goa powder |
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| chrysoberyl | (noun) a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone | - |
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| chrysolite | (noun) a brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone | - |
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| chrysomelid | (noun) brightly colored beetle that feeds on plant leaves; larvae infest roots and stems | Synonyms: leaf beetle |
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| chrysopid | (noun) pale green unpleasant-smelling lacewing fly having carnivorous larvae | Synonyms: green lacewing, stink fly |
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| chrysoprase | (noun) a green variety of chalcedony valued as a gemstone | - |
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| chrysotherapy | (noun) the use of chemicals containing gold for treating diseases (such as rheumatoid arthritis) | - |
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| chrysotile | (noun) a grey or green fibrous mineral; an important source of commercial asbestos | - |
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| chub | (noun) European freshwater game fish with a thick spindle-shaped body | Synonyms: Leuciscus cephalus |
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| chubbiness | (noun) the property of having a plump and round body | Synonyms: pudginess, rolypoliness, tubbiness |
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| chuck | (noun) a holding device consisting of adjustable jaws that center a workpiece in a lathe or center a tool in a drill | - |
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| (noun) the part of a forequarter from the neck to the ribs and including the shoulder blade | - |
| (noun) informal terms for a meal | Synonyms: chow, eats, grub |
| chuckhole | (noun) a pit or hole produced by wear or weathering (especially in a road surface) | Synonyms: pothole |
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| chuckle | (noun) a soft partly suppressed laugh | Synonyms: chortle |
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| chuckwalla | (noun) a herbivorous lizard that lives among rocks in the arid parts of southwestern United States and Mexico | Synonyms: Sauromalus obesus |
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| chuddar | (noun) a cloth used as a head covering (and veil and shawl) by Muslim and Hindu women | Synonyms: chadar, chaddar, chador |
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| chufa | (noun) European sedge having small edible nutlike tubers | Synonyms: Cyperus esculentus, earth almond, ground almond, rush nut, yellow nutgrass |
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| chug | (noun) the dull explosive noise made by an engine | - |
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| chukka | (noun) a shoe that comes up to the ankle and is laced through two or three pairs of eyelets; often made of suede | Synonyms: chukka boot |
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| (noun) (polo) one of six divisions into which a polo match is divided | Synonyms: chukker |
| chukker | (noun) (polo) one of six divisions into which a polo match is divided | Synonyms: chukka |
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| chum | (noun) a large Pacific salmon with small spots on its back; an important food fish | Synonyms: chum salmon, Oncorhynchus keta |
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| (noun) bait consisting of chopped fish and fish oils that are dumped overboard to attract fish | - |
| (noun) a close friend who accompanies his buddies in their activities | Synonyms: brother, buddy, crony, pal, sidekick |
| chumminess | (noun) the quality of affording easy familiarity and sociability | Synonyms: camaraderie, comradeliness, comradery, comradeship |
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| chump | (noun) a person who is gullible and easy to take advantage of | Synonyms: fall guy, fool, gull, mark, mug, patsy, soft touch, sucker |
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